Enum rustc_middle::thir::StmtKind
source · [−]pub enum StmtKind<'tcx> {
Expr {
scope: Scope,
expr: ExprId,
},
Let {
remainder_scope: Scope,
init_scope: Scope,
pattern: Pat<'tcx>,
initializer: Option<ExprId>,
lint_level: LintLevel,
},
}
Variants
Expr
Fields
scope: Scope
The scope for this statement; may be used as lifetime of temporaries.
expr: ExprId
The expression being evaluated in this statement.
An expression with a trailing semicolon.
Let
Fields
remainder_scope: Scope
The scope for variables bound in this let
; it covers this and
all the remaining statements in the block.
init_scope: Scope
The scope for the initialization itself; might be used as lifetime of temporaries.
pattern: Pat<'tcx>
let <PAT> = ...
If a type annotation is included, it is added as an ascription pattern.
lint_level: LintLevel
The lint level for this let
statement.
A let
binding.
Trait Implementations
sourceimpl<'tcx, '__ctx> HashStable<StableHashingContext<'__ctx>> for StmtKind<'tcx>
impl<'tcx, '__ctx> HashStable<StableHashingContext<'__ctx>> for StmtKind<'tcx>
fn hash_stable(
&self,
__hcx: &mut StableHashingContext<'__ctx>,
__hasher: &mut StableHasher
)
Auto Trait Implementations
impl<'tcx> !RefUnwindSafe for StmtKind<'tcx>
impl<'tcx> !Send for StmtKind<'tcx>
impl<'tcx> !Sync for StmtKind<'tcx>
impl<'tcx> Unpin for StmtKind<'tcx>
impl<'tcx> !UnwindSafe for StmtKind<'tcx>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<Ctxt, T> DepNodeParams<Ctxt> for T where
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
impl<Ctxt, T> DepNodeParams<Ctxt> for T where
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
default fn fingerprint_style() -> FingerprintStyle
sourcedefault fn to_fingerprint(&self, tcx: Ctxt) -> Fingerprint
default fn to_fingerprint(&self, tcx: Ctxt) -> Fingerprint
This method turns the parameters of a DepNodeConstructor into an opaque Fingerprint to be used in DepNode. Not all DepNodeParams support being turned into a Fingerprint (they don’t need to if the corresponding DepNode is anonymous). Read more
default fn to_debug_str(&self, Ctxt) -> String
sourcedefault fn recover(Ctxt, &DepNode<<Ctxt as DepContext>::DepKind>) -> Option<T>
default fn recover(Ctxt, &DepNode<<Ctxt as DepContext>::DepKind>) -> Option<T>
This method tries to recover the query key from the given DepNode
,
something which is needed when forcing DepNode
s during red-green
evaluation. The query system will only call this method if
fingerprint_style()
is not FingerprintStyle::Opaque
.
It is always valid to return None
here, in which case incremental
compilation will treat the query as having changed instead of forcing it. Read more
sourceimpl<T, R> InternIteratorElement<T, R> for T
impl<T, R> InternIteratorElement<T, R> for T
type Output = R
fn intern_with<I, F>(
iter: I,
f: F
) -> <T as InternIteratorElement<T, R>>::Output where
I: Iterator<Item = T>,
F: for<'_> FnOnce(&[T]) -> R,
sourceimpl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
impl<'a, T> Captures<'a> for T where
T: ?Sized,
Layout
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.
Size: 56 bytes
Size for each variant:
Expr
: 12 bytesLet
: 52 bytes